Surgical instrument



FIG. 1 is a top front perspective view of the surgical instrument according to the design;

FIG. 2 is a bottom view thereof;

FIG. 3 is a right, top perspective view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a rear side view thereof; and,

FIG. 7 is a front view thereof. 

CLAIM The ornamental design for a surgical instrument, as shown and described. 